Bollywood serial kisser Emraan Hashmi and Raaz series have become identity of eachother. Emraan was seen in two previous movie with Kangana Ranaut in Raaz-The mystery continues and with Isha Gupta and Bipasha Basu in Raaz 3. Now he is again coming back with this series. According to one source, Emraan wanted to stay away from world because he wanted to completely get into the character of Raaz 4. Emraan wants to give sometime to the research. He has still not decided whether after the break he will stay in house or will go some other place. For giving ultimate performance on the screen, actor for sometime walk away from the world. Not for this role only, Emraan will write a book on the struggle of his sons cancer.